[LIBGDX学习]LibGDX代码详解（七）Box2D

public class DebugRendererTest extends Box2DTest {

	@Override
	protected void createWorld (World world) {
		{
			EdgeShape shape = new EdgeShape();
			shape.set(new Vector2(-40.0f, 0), new Vector2(40, 0));

			FixtureDef fd = new FixtureDef();
			fd.shape = shape;
			fd.friction = 0.3f;

			BodyDef bd = new BodyDef();
			Body ground = world.createBody(bd);
			ground.createFixture(fd);
			shape.dispose();// 别忘记这句
		}

		{
			PolygonShape shape = new PolygonShape();
			shape.setAsBox(1, 2f);

			BodyDef def = new BodyDef();
			def.position.y = 10;
			def.angle = (float)Math.toRadians(90);
			def.type = BodyType.DynamicBody;

			Body body = world.createBody(def);
			body.createFixture(shape, 1);

			def = new BodyDef();
			def.position.x = 10;
			def.position.y = 10;
			def.angle = 0;
			def.type = BodyType.DynamicBody;

			body = world.createBody(def);
			body.createFixture(shape, 1);

			shape.dispose();
		}

	}
}